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化工研发
培养单晶碰到的一个问题? <H2>培养单晶碰到的一个问题</H2> <DIV>请教一个问题:我是用一个配体溶解在二氯 甲烷 中, 氯化 铜溶解在 乙腈 中,然后把后者溶液加入前者溶液中,产生浑浊,然后我把溶剂旋蒸了,接下来我用乙腈,但是不太溶解,下面有比较多沉淀,请问我应该用什么溶剂去溶解这个配合物,然后用乙醚去扩散呢?</DIV>查看更多 0个回答 . 2人已关注
2010年注安考试真题搜集——安全管理? 2010年 注安考试 结束了,建议参加考试的各位盖德将自己记得的考题跟帖上传(最好有正确答案),大家可以提前预测一下自己考的怎么样,跟帖有奖!! 查看更多 1个回答 . 1人已关注
气液卧式两项分离器的工艺计算? 哪位专家知道怎么进行气液卧式两项 分离器 的工艺计算呢?现在有工艺参数以及需要达到的分离效果等,怎么进行具体的工艺计算呢?请问有相关的软件、程序么?谢谢指教! 查看更多 3个回答 . 5人已关注
环评中“非正常工况的处理过程和排污分析”怎么处理? 小弟,正在赶写一份环评报告,其中的“ 非正常工况的处理过程和排污分析”很难把握,有经验的大侠,能否提提建议? 查看更多 1个回答 . 3人已关注
煤气发生炉的夹套,应该说煤气发生炉的夹套不应该算压力 ...? 煤气发生炉 的夹套是水,蒸汽包的压力为0.08MPa,应该说煤气发生炉的夹套不应该算 压力容器 的,可在实际工作中,有要求算压力容器的,不知道这样的要求合适吗?查看更多 2个回答 . 2人已关注
球罐和油罐所用钢板制造规范? 球罐和油罐所用钢板制造规范是什么,用什么国家标准,我在验收钢板时应该注意什么?查看更多 0个回答 . 1人已关注
求助什么蒸发温度越高,制冷量越小? 求诸位大侠 从压焓图上看到蒸发温度越高,制冷量是;越大的。现在限定 蒸发器 进出水温12度7度,能解释下为什么蒸发温度越高,制冷量越小? 查看更多 0个回答 . 5人已关注
求浓硫酸、甲醇、烧碱、BDO的在罐区储存时操作的安全培 ...? 化工厂罐区操作工安全培训资料,罐区主要储存 98%浓硫酸 、 甲醇 、 丁醇 、烧碱、BDO。有内容相近的也可以,感谢您的帮助查看更多 1个回答 . 2人已关注
参议员巴拉克·奥巴马在艾奥瓦党团会议选举获胜之夜的演 ...? 参议员 巴 拉克· 奥 巴 马 在艾 奥 瓦党团会议选举获胜之夜的 演讲 Remarks of Senator Barack Obama: Iowa Caucus NightDes Moines, IA | January 03, 2008 Thank you, Iowa.You know, they said this day would never come.They said our sights were set too high.They said this country was too divided; too disillusioned to ever come together around a common purpose.But on this January night - at this defining moment in history - you have done what the cynics said we couldn't do. You have done what the state of New Hampshire can do in five days. You have done what America can do in this New Year, 2008. In lines that stretched around schools and churches; in small towns and big cities; you came together as Democrats, Republicans and Independents to stand up and say that we are one nation; we are one people; and our time for change has come.You said the time has come to move beyond the bitterness and pettiness and anger that's consumed Washington; to end the political strategy that's been all about division and instead make it about addition - to build a coalition for change that stretches through Red States and Blue States. Because that's how we'll win in November, and that's how we'll finally meet the challenges that we face as a nation.We are choosing hope over fear. We're choosing unity over division, and sending a powerful message that change is coming to America.You said the time has come to tell the lobbyists who think their money and their influence speak louder than our voices that they don't own this government, we do; and we are here to take it back.The time has come for a President who will be honest about the choices and the challenges we face; who will listen to you and learn from you even when we disagree; who won't just tell you what you want to hear, but what you need to know. And in New Hampshire, if you give me the same chance that Iowa did tonight, I will be that president for America.Thank you.I'll be a President who finally makes health care affordable and available to every single American the same way I expanded health care in Illinois - by--by bringing Democrats and Republicans together to get the job done.I'll be a President who ends the tax breaks for companies that ship our jobs overseas and put a middle-class tax cut into the pockets of the working Americans who deserve it.I'll be a President who harnesses the ingenuity of farmers and scientists and entrepreneurs to free this nation from the tyranny of oil once and for all.And I'll be a President who ends this war in Iraq and finally brings our troops home; who restores our moral standing; who understands that 9/11 is not a way to scare up votes, but a challenge that should unite America and the world against the common threats of the twenty-first century; common threats of terrorism and nuclear weapons; climate change and poverty; genocide and disease.Tonight, we are one step closer to that vision of America because of what you did here in Iowa. And so I'd especially like to thank the organizers and the precinct captains; the volunteers and the staff who made this all possible.And while I'm at it, on "thank yous," I think it makes sense for me to thank the love of my life, the rock of the Obama family, the closer on the campaign trail; give it up for Michelle Obama.I know you didn't do this for me. You did this-you did this because you believed so deeply in the most American of ideas - that in the face of impossible odds, people who love this country can change it.I know this-I know this because while I may be standing here tonight, I'll never forget that my journey began on the streets of Chicago doing what so many of you have done for this campaign and all the campaigns here in Iowa - organizing, and working, and fighting to make people's lives just a little bit better.I know how hard it is. It comes with little sleep, little pay, and a lot of sacrifice. There are days of disappointment, but sometimes, just sometimes, there are nights like this - a night-a night that, years from now, when we've made the changes we believe in; when more families can afford to see a doctor; when our children-when Malia and Sasha and your children-inherit a planet that's a little cleaner and safer; when the world sees America differently, and America sees itself as a nation less divided and more united; you'll be able to look back with pride and say that this was the moment when it all began.This was the moment when the improbable beat what Washington always said was inevitable.This was the moment when we tore down barriers that have divided us for too long - when we rallied people of all parties and ages to a common cause; when we finally gave Americans who'd never participated in politics a reason to stand up and to do so.This was the moment when we finally beat back the politics of fear, and doubt, and cynicism; the politics where we tear each other down instead of lifting this country up. This was the moment.Years from now, you'll look back and you'll say that this was the moment - this was the place - where America remembered what it means to hope.For many months, we've been teased, even derided for talking about hope.But we always knew that hope is not blind optimism. It's not ignoring the enormity of the task ahead or the roadblocks that stand in our path. It's not sitting on the sidelines or shirking from a fight. Hope is that thing inside us that insists, despite all evidence to the contrary, that something better awaits us if we have the courage to reach for it, and to work for it, and to fight for it.Hope is what I saw in the eyes of the young woman in Cedar Rapids who works the night shift after a full day of college and still can't afford health care for a sister who's ill; a young woman who still believes that this country will give her the chance to live out her dreams.Hope is what I heard in the voice of the New Hampshire woman who told me that she hasn't been able to breathe since her nephew left for Iraq; who still goes to bed each night praying for his safe return.Hope is what led a band of colonists to rise up against an empire; what led the greatest of generations to free a continent and heal a nation; what led young women and young men to sit at lunch counters and brave fire hoses and march through Selma and Montgomery for freedom's cause.Hope-hope-is what led me here today - with a father from Kenya; a mother from Kansas; and a story that could only happen in the United States of America. Hope is the bedrock of this nation; the belief that our destiny will not be written for us, but by us; by all those men and women who are not content to settle for the world as it is; who have the courage to remake the world as it should be.That is what we started here in Iowa, and that is the message we can now carry to New Hampshire and beyond; the same message we had when we were up and when we were down; the one that can change this country brick by brick, block by block, calloused hand by calloused hand - that together, ordinary people can do extraordinary things; because we are not a collection of Red States and Blue States, we are the United States of America; and at this moment, in this election, we are ready to believe again. Thank you, Iowa.查看更多 0个回答 . 3人已关注
冷态动力场试验? 我公司锅炉(煤粉炉)要做冷态动力场试验,设计的假象切圆直径为550mm,有的人介绍实际做时,达不到这样的标准,讲实际切圆直径是假象切圆的5-7倍,这样的说法对吗?动力场试验过程中三次风做测不测风速,如果不测,对特性试验有影响吗?请大侠指点。查看更多 2个回答 . 4人已关注
旋风分离器分离效率低对锅炉经济运行有何影响? 旋风分离器 分离效率低对锅炉经济运行有何影响?查看更多 1个回答 . 2人已关注
PDS初始设定? PDS初始设定查看更多 1个回答 . 4人已关注
有关标准求助? 请问谁有标准:NB/T47011-2010《锆制 压力容器 》,请发给我一份呗,谢谢! QQ:271317011查看更多 0个回答 . 3人已关注
HYSYS模拟三甘醇脱水--汽提气应该进入哪啊? 用HYSYS模拟TEG脱水,想用汽提气在提纯TEG,请问从 分离器 出来后,汽提气应该进入哪个模块? 精馏塔 ?还是什么! 查看更多 10个回答 . 5人已关注
安全工作为何难搞? 安全工作比较难搞,大老板的态度有很大因素,下面工人,工段长,车间主任的表现也很重要!大家都知道安全的重要性,可为什么实际中总有这样那样的事故呢?抛砖引玉,我认为主要是成本的问题:不管哪个级别,不能否认的是效益好了大家的工资收入才能上去。如果一个项目,正常情况下需要10小时创利1000元,安全设施完善要1小时,这还可以接受;如果完善安全设施要5小时呢?10小时呢?20小时呢?因此,安全成本也是要考虑的,怎样在保证安全的情况下降低成本,是很重要的!作为工人的成本来说,违章重罚确实能起到作用,可如果收入是和工作成绩挂钩的话,就要寻求平衡点了,要知道,违章并不一定发生事故,侥幸心理就会站上风!另外,一般情况下国企安全工作普遍比私企好些,这也是分配制度决定的。呵呵,希望大家有好的办法 查看更多 28个回答 . 3人已关注
催化剂床层的露点温度? 就拿低变来说吧:在停车只有两三天的时候,系统会进行保温保压,温度会下降一定的温度,如果床层的最低点温度下降到170 ℃压力为0.7MPa(表压),相当于0.7MPa(表压)饱和水蒸汽的温度为170℃。在这种情况下 催化剂 床层里会有水生层吗?大家见到这种情况是怎样处理的呢?等它继续温度下降还是放空降压处理,或者还有其它的处理办法。 查看更多 5个回答 . 5人已关注
问一些简单问题,汽相分率什么意思? 汽相分率为0或者1,是什么意思 处理量55t/h是不是==55000lb/hr 轻重组分的回收率怎么算出来的,根据什么来算? 请人指教查看更多 6个回答 . 5人已关注
热电阻的插入深度? 500以下的,一般对满管的介质,尽量到管道中心;大于500的,插入300最多;其他的不满管的,根据安装情况,角度等确定。查看更多 26个回答 . 2人已关注
硫磺制酸装置高温过热器使用寿命? 我厂一套250kt/a 硫磺 制酸装置高温过热器在使用5年后,多次发生泄漏,目前上部高温段已基本堵管完毕,不知别的厂情况怎样?查看更多 8个回答 . 5人已关注
谁可能在光伏中第一个倒下? 据报道:自5月17日美国商务部公布对华太阳能电池反倾销初裁后赛维LDK股价下浮35%。。。4个交易日内市值蒸发38%。美国存托凭证从5月23日的3.05美元下滑至1.88美元。山雨欲来我们该如何应对!查看更多 35个回答 . 2人已关注
简介
职业:上海平创化工科技有限公司 - 化工研发
学校:洛阳师范学院 - 化学化工学院
地区:贵州省
个人简介:友谊像清晨的雾一样纯洁,奉承并不能得到友谊,友谊只能用忠实去巩固它。查看更多
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